Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Coalescence reactions of fullerenes
Authors: Yeretzian, Chahan
Hansen, Klavs
Diederich, François
Whetten, Robert L.
DOI: 10.1038/359044a0
Published in: Nature
Volume(Issue): 1992
Issue: 359
Pages: 44
Pages to: 47
Issue Date: 3-Sep-1992
Publisher / Ed. Institution: Springer
Publisher / Ed. Institution: London
ISSN: 1476-4687
Language: English
Subjects: Fullerenes; Coalescence
Subject (DDC): 540: Chemistry
Abstract: The production of fullerene molecules typically involves extreme high-temperature conditions (electric arcs, flames or resistive heating), and the reactive processes involved are poorly understood. Once separated these molecules can undergo several important reactions, including formation of charge-transfer and adduct compounds, and the encapsulation of atoms. Here we present evidence for coalescence reactions between fullerene molecules: mass spectrometric measurements on hot, dense vapours of small fullerenes (C60 and C70) reveal the formation of stable higher fullerenes which are multiples of the initial masses. The heat of coalescence is released through emission of small, even-numbered fragments which, in a very dense vapour, are efficiently captured by other coalesced fullerenes. These findings have implications for the mechanisms of fullerene formation and growth, and may open the way to new synthetic routes to selected higher fullerenes and encapsulation compounds.
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Chemistry and Biotechnology (ICBT)
Appears in Collections:Publikationen Life Sciences und Facility Management

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